Ventilator



Fei. 1, 149. E. E. SIM@ www@ VENTILATOR Filed Aug. 9. 1944 's sheetssheet 1 aBslMcox 460,64

VENTILATOR Feb l, w

.3 Sheets-Sheet 2 Filed Aug. 9. 1944 Burn B. Simcox Patented Feb. 1, 1949 I UNITED STAT Es PATENT OFFICE VvEN'riLA'roR Burton B. VSimeon, Knoxville, Tenn. Application August 9, 1944, .Serial'vNm 548,649

This invention relates to a ventilator device for vehicles and more especially toa ventilator device adapted to be placed in the hull or side walls or window closures of an airplane or other vehicle for scooping air from the exterior ofthe vehicle and forcing itlto the interior thereof, and comprises a cup-shapedfmember adapted to fit inside an opening in the vehicle with thefront portion of the cup-shaped member being cut away so as yto serve as a scoop for scooping air due to the forward motion of the vehicle and forcing it,

the open front side of the cup-shaped member to s 4 claims. (ci. sas-i3) y. ing forwardly will force from the exterior to the the air through which the vehicle isv passing to f force air from the outside of the vehicle to the interior thereof. y n,

It is another object of this invention to provide-a ventilator adapted to fit into an opening in the wall ,of a vehicle and said ventilator comprising a cup-shaped member having a* rim adapted to t on the interior of the vehicle and y being adapted to be compressed to `permit its in,-

sertioninto an opening in the wall of the vehicle and being so arranged as to not easily be removable except by manual operation, that is, so that the slip stream cannot tear the ventilator from the opening in which it is disposed, said cup-A`V` shaped member being retractable to close the opening in which it is mounted to thus decrease the drag eected by the member when in extended position. Y

vIt is another object of this invention to provide a ventilator device comprising an air scoop` adapted to be fitted into an opening in the wall of a vehicle and having means whereby it can be rtelescoped into the inside of the vehicle where its exterior surface will lie substantially flush with the exterior surface of the wall of the vehicle,

and vbeing extendable so as to serve as 'K av scoop to scoop air while the vehicle is' in motion and to force the air to the interior of the vehicle.

It is another object of this invention to provide a ventilator of scoop-shape which can belrotatf-,

ably and frictionally mounted in `van opening in the wall or Windows of va vehicle, whichfwherl taci-y interior ofthe vehicle, and when facing rearwardly will `draw air out of the interior of the vehicle. s

Some of the objects of the invention having Y been stated, other objects will appear as the description proceeds, when taken in connection with theaccompanying drawings, in which- Figure 1 is a perspective View of my ventilator taken from the outside of the vehicle, and showing the ventilator in open position;

Figure 2 is an elevation of the ventilator shown in Figure. 1, viewed from the inside of the vehicle, and showing the ventilator in a closed position;

Figure 3 is a cross-section through the venti- Vlator of Figure 1 taken along the line 3-3 of Figure 1;

Figure 4 is a cross-section through the ventilator of Figure 2 taken along the line 4-4 of 3, Figure 2;

of a modied ventilator which permits a variation in the opening and closing of the ventilator;

Figure '7 is an elevation looking from the insideof the vehicle of a modified ventilator which is retained in the vehicle opening by the projection of the expander ring;

Figure 8 is a cross-section through the ventilator of Figure-f7 taken along the line 8-8 of Figure 7, and showing the ventilator in an open position;

Figure'9 is `an elevation from the outside of the vehicle of a modified ventilator in closed positionwhich permits its installation or removal from ther inside of the vehicle;

Figure 10` isv a cross-section through the ventilatorA of Figure 9 taken along the line Ill-l0 in Figure 9,v and showing the ventilator in the open position; 4 f Y Figure 11 is a cross-section through the ventilator of Figure 9 taken along the line lI-H in 'Figure l9, and showing the ventilator in the open Position;

Figure 12 is an elevation from the inside of the vehicle of a modied ventilator which provides for its installation in a vehicle which is con- 4{structed with a double wall or lined with up- Figure an elevation from the inside of the` 3 vehicle of the type shown in Figures 1 to 6 with a modied expander ring;

Figure is a cross-section through the ventilator of Figure 14 taken along the line Iii-I5 in Figure 14. 5

Referring more specifically to the drawings, the numeral III indicates the wall of a vehicle which in the present instance may be the transparent Cellophane or other resin paneof. a window frame or windshield of an airplane, or it-can' be the sheet metal portion of the airplane in which the ventilator can vbe mounted. In the portion I0, lthere is .provided a circular opening II into which the cup-shaped ventilator I2"is' adapted to fit. 15

This cup-shaped ventilator has an'outwardly` ared or rim portion I3 adapted-*rito 'bedisposedd on the inside of the opening, and i-t has a cap portion I4 of slightly larger dimension thanthe opening II, and it has aicircular w-all portion I5. This wall portion I5 has a cut awayvvp'orti'on' H; which, when the cup-shaped memheris swung outwardly at its front portion,` as shownfin;,.Fi`g-` ure 3, serves as a scoop to scoop up the:r air'. through which the vehicle is. passingsuch'asfan airplane while lin flight, and 'forcethe air through., the opening II into the interior oftthevehicle..

Mountedon the interior'of the cup-shapedy member is a resilient member 2l) kmade offanir suitable material, such as spring steel; whichf-has projections 2l andV 22 onxits ends adaptedfto project through suitable holes'in thefwall portion I5 to limit outwardvmovement .of the front pore4 tion of the cupeshaped' member, as theseproie'c`v tions 2I and k2i are adapted to'engage th'eginterior surface of th-ewall member II).I The-mer`rr ber 2l] exerts outward pressure on the sidewalli of the ventilator in all forms ofthe-finventionand .provides the rictional contact necessary toholdJ2 the ventilator in adjusted position.

The memberi ialso has a humprorfvprojection formed thereon designated by Vreference characx` ter 23 which projects `through a suitable open ing in: the rear portion. of the-wall. I5,tandis adapted to limit outwardm-ovement ofthe-venl tilator as this portion I5 4is adapted .torest against" the interior surface of the: member If'atall times. In Figures 5 and '6,' the member` Zilli'hasA .theportion 23` projecting through the wallpor- Y* tion at a different `posi-ticmaor. nearathebaserof the rim i3.l This permits the Ventilatorttbefslid outwardly or inwardly `bodily `to open or 'close the@ ventilator and to expose its. scooped lportionftdl the air passing by the vehicle. f

In Figure 5 I show a humped or raised projection' 25 sloping in each direction towards theb'asef portion I3 andthe cap portion I 4so=as1to1causec the ventilator to remain in adjusted 4.position-out'- r wardly or inwardly as the casemay While in Figure 6, this projectionrepresentedbyr25 inY Figf I ure'5 is shown in dottedlinesandis represented* by reference character 26 as being at a diiierentw point on the wall portion I 5, louty serving the ysame purpose.

In Figures 9 and io, the structure is simiiarto-r" that shown in Figures 1 to 4 inclusive, except-that i in Figures 9 and 10, the .top-or exterior member i is shown not in the form of a circle, vbut iii-the form' of an ellipse, so that its verticaldimension is less: than its horizontal dimension',` which"per' mits the ventilator or cup-shaped member-tope" compressed, so that it caribe removedfirom the opening-from the insideof'the vehicle." n

In Figures 7 and 8, like parts indicate previously describedsparts,:except that "in" 'Figures 7 fand 75' holstered wall:

8, there is no rim I 3 on the interior of the Vehicle, but the expander ring 20a serves as the sole means for holding the cup-shaped member within the opening II and prevents its removal from the opening except when the expander ring is compressed. This expander ring 20a is shown as being of iiat material, but the function and operation remain the same as previously described.

InlFigures 12-and 13, thereisshown a modified formi off the inventiomin. which'like reference characters apply except that it is adapted to ce placed within an aircraft or other vehicle hav- Iing thicker walls than tha-t indicated in the other drawings. In the structure shown in Figures 12 and 113, this is especially adaptable for a vehicle having a double wall, insulated wall, or an up- I-Iere a tubular spacer member 28 is provided between 'the outer wall IIJ and the inner""wall Ia, and in this tubular member 28, the ventilator is mounted. In this form of the invention; the expander ringl forces/the hnge I 33 against theinteriorl of the tubular -memb'er f randprovides.v the rrequired friction-'fior holdf-ff ing.:the--' ventilator in desired adjustment-g' Tlef proieotionsoffthe-| expander ring-2Iialsof-contact thef wally of ther tubular-member 28and1 providev friet-ioniffonfhhldirig 'the Ventilator-in thefdesiredf' adjustment; l

Due `tothefa'ctzftl'iat the#ventilator,` as shown in- Figure `l; is compressedtofallow itfto"beinserted* intozitheifopening- I I ,i there is -apressure exerted; onrthe wall/ offtli'e openinghy:thel cupesh'aped* member-'1 I2?, and this holds bywreason"of-:frictionthefventilatonin Vadjustedposition.A The same-is true in all other figures of the drawings except iril Figures 12 and 13where-thel expander-ringi furnishes ther desired! frictional engagement-"bee tween vthe--rimportion lf3 1and Ilthe tubular portion 28.? The z expanding'thrust "ofthe expanderuing' 201 forcesethe side r`walls -of-the cup-'shaped meme b'er outwardly againstrtheI circular cutoutin the walllfof trie-vehicle;v andthe 'pressure "of contact. betweenthe--surface-*of 'the opening" in'thei'wall g of Athe-vvehicle andthe exteriorof the cu'peshaped element provides the frictionnecessaryto retain 'l the cup-shaped element in adjustedposition, as

the `cup-shaped' element can" be rotated within the openingA tol regulate theeamount '.ofai'r which istforced ithroughf-th'e opening I Il as 'in-Figure l,"`

for exampleyth'e cupe-.shaped element is shown in a-rr-r adjusted "position" to allo'w' the maximum,l amount foie-air to be forced-through" the"oltreniiigf is"rotatedfin"eithercdirectiong thatless area 01"y of -the `--invention1 is vshown which `is similar to the structure 'shown 'int-all' 'gures except "Figures .12 and 13, and like reference characters will'a'pply" to A *likey` parts;-l Themain difference is that" the expander#Inern'lier"EIZnv 'does not have" any"rear projection' 231th`ereon. Thispermits the ventilaf tor todoeu slidoutwardlyorinwardly bodily in# stead `of-"pivotingor'very much in'the same -man-` ner as A'the structure'shown in Figures `7 and 8` operates, except that there is a rim portion I3 infcliigures*f14e"and`15lZ In theforrnsshown in Figuresr'g-Sfli; andtlj the rear edge 'of .portion I I4 canwbe -resting against the lexterior'of' wall'I and the frontl portionof :the ventilator can be swung putwardl'y:

It isthusseen that vr haveprovideda ventilatori l vhaving'fewerpartsthan' other types of "ret'r'actl allows vision through the ventilator.

advantage especially when installations are made v able ventilators, one which is easier, quicker, and

, make it necessary to remove the ventilator. 1t is lighter in weight than other ventilators, and when a number of installations are made in a single airplane or vehicle, the accumulated saving in weight is important. The ventilator may be constructed of transparent plastic material which This is an in transparent enclosures, The modified structure as shown in Figures 9 to 11 inclusive can be readily removed from the interior of the vehicle. When used in windows of' military transport planes, this opening provided by the easy removal of the ventilator can be used for a gun port. In this manner, the ventilator serves as a gun port closure, as well as a ventilator.

The design with the modified expander ring shown in Figures 7 and 8, is constructed so that projections on the exterior of the expander ring serve to retain the ventilator in the vehicle wall if the usual flange is not desired.

In the drawings and specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for the purposes of limitation, the scope of the invention being defined in the claims.

I claim: y

1. A ventilator ladapted to be tensionally and rotatably held in a circular hole in an enclosing wall of` a vehicle comprising a cylindrical portion of 'flexible material Vhaving an outside dimension which is slightly larger than the hole in the vehicle wall and having a cut-away portion extending from its inner end towards its outer end so that the inner end of the cylindrical'portion can be compressed for insertion into the hole, a cap member closing the outer end of the cylindrical portion and having portions thereof extending outwardly beyond the outer surface of the cylindrical member, the cylindrical member having means projecting outwardly from its inner end for normally preventing the ventilator from moving entirely out of the hole, said cylindrical member having a projection intermediate its ends and on its exterior surface to prevent inward or outward movement of the ventilator relative to the enclosing wall except when the cylindrical member is compressed.

2. A ventilator adapted tobe tensionally and rotatably held in a circular hole in an enclosing Wall of a vehicle comprising a cylindrical portion of flexible material having an outside dimension which is slightly larger than the hole in the vehicle wall and having a cut-away portion extending from its inner end towards its outer end so that it can be compressed for insertion into the hole, a cap member closing the outer end of the cylindrical portion and having portions thereof extending outwardly beyond the outer surface of the cylindrical member, the cylindrical member having means projecting outwardly from its inner end for normally preventing the ventilator from moving entirely out of the hole,

said cylindrical member having a projection inf termediate its ends vand on its exterior surface to prevent inward or outward movement of the ventilator relative to the enclosing wall except when the cylindrical member is compressed, the cap member being substantially elliptical in form so that along its minor axis its outer edges are substantially flush with the outer surface of the cylindrical member whereby when the cylindrical member is compressed the ventilator can be removed inwardly into the vehicle out of the hole in the enclosing wall.

3. A ventilator adapted to be tensionally and rotatably held in a circular hole in an enclosing wall of a vehicle comprising a cylindrical portion of flexible material having an outside dimension which is slightly larger than the hole in the vehicle Wall and having a cut-away portion eX- tending from its inner end towards its outer end so that it can be compressed for insertion into the hole, a cap member closing the outer end of the cylindrical portion and having portions thereof extending outwardly beyond the outer surface of the cylindrical member, the cylindrical member having means carried by and projecting outwardly from its inner end for normally preventing the ventilator from moving entirely out of the hole, said cylindrical member having a pair of opposed holes adjacent the cut-away portion and near the inner end of the cylindrical member and a resilient member disposed within the cylindrical member and having its ends projecting outwardly beyond the outer surface of the cylindrical member, said cylindrical member also having a hole in that portion which is opposed to the cut-away portion, and said resilient member also having a projection extend through the last-named hole.

4. A ventilator adapted to be positioned in aV end which is positioned outside the Wall of the vehicle, said tubular member having a diameter which is slightly greater than the diameter of the hole to cause its exterior to frictionally engage the walls of said hole, said tubular member being slidable inwardly and outwardly in said hole, a cap closing the outer end of the tubular member, means projecting from the outer surface of the inner end of the tubular member for normally preventing the member from moving outwardly entirely out of the hole, less than half of the tubular member being cut away from its inner end to near its outer end so the inner end can be compressed for insertion of the inner end of the tubular member into the hole or removal of the same therefrom, and means projecting from the exterior surface of the tubular member and intermediate the ends thereof for holding the tubular member in adjusted position relative to said hole.

BURTON B. SIMCOX.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS 

